I have a p0305 misfire . I have changed the cap rotor distributor plug wires spark plugs and the spider injection system . It has 100 psi in the #5 for compression and I’m running about 60 psi for fuel . I can’t figure it out. I also checked the valves they are working good as well .

The P0305 code means that the cylinder 5 is misfiring or is randomly misfiring. Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 5. If the problem persist more tests needs to be done to diagnose problem, see “Possible Causes”